For the majority of history and or for the majority of people even today, 'work' was what you did to fulfill the most bottom of the tiers of Maslow's hierarchy of needs - survival.
IOW, 'work' isn't some activity that exists outside of your 'real' life, it IS your life in a very literal sense.
I realize that kinda dovetails with the article's point, but I think before people get too outraged with the state of modern capitalism, a little perspective is probably in order.